package com.example.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.example.common.R;
import com.example.pojo.User;
import com.example.service.UserService;
import com.example.util.ValidateCodeUtils;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpSession;
import java.util.Map;
import java.util.concurrent.TimeUnit;

/**
 * @author Anomaly
 * @date 2022/10/19 17:24
 */

/**
 * 移动端
 */
@Slf4j
@RestController
@RequestMapping("/user")
public class UserController {
    @Autowired
    private UserService userService;
    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 发送手机短信验证码
     *
     * @param user
     * @return
     */
    @PostMapping("/sendMsg")
    public R<String> sendMsg(@RequestBody User user, HttpSession session) {
        //获取手机号
        String phone = user.getPhone();

        if (StringUtils.isNotEmpty(phone)) {
            //生成随机6位验证码
            String code = ValidateCodeUtils.generateValidateCode(6).toString();
            log.info("本次验证码code：" + code);

            //调用阿里云api发短信
            //SMSUtils.sendMessage("瑞吉外卖", "", phone, code);

            //将生成的验证码保存到Session
            //session.setAttribute(phone, code);

            //将生成的验证码保存到Redis，有效期5分钟
            redisTemplate.opsForValue().set(phone, code, 5, TimeUnit.MINUTES);
            return R.success("验证码发送成功");
        }
        return R.error("验证码发送失败");
    }

    /**
     * 移动端用户登录
     *
     * @param map
     * @param session
     * @return
     */
    @PostMapping("/login")
    public R<User> login(@RequestBody Map map, HttpSession session) {
        log.info(map.toString());
        //获取手机号和验证码
        String phone = map.get("phone").toString();
        String code = map.get("code").toString();
        //从Session中获取验证码
        //Object attribute = session.getAttribute(phone);

        //从Redis获取验证码
        Object attribute = redisTemplate.opsForValue().get(phone);
        //比对验证码
        if (attribute != null && attribute.equals(code)) {
            LambdaQueryWrapper<User> userLambdaQueryWrapper = new LambdaQueryWrapper<>();
            userLambdaQueryWrapper.eq(User::getPhone, phone);
            User user = userService.getOne(userLambdaQueryWrapper);
            //判断当前手机号是否为新用户，如果是新用户就自动注册
            if (user == null) {
                user = new User();
                user.setPhone(phone);
                user.setStatus(1);
                user.setName("张三");
                userService.save(user);
            }
            session.setAttribute("user", user.getId());
            //登录成功，删除Redis的验证码
            redisTemplate.delete(phone);
            return R.success(user);
        }
        return R.error("登录失败");
    }
}
